Supply Of Feeder Contactor For Main Feeder Power Car, 3 Phase, 3 Pole Voltage 1kv Control Voltage Ac 440v Plus/minus 10% To 20%, 50hz, Current 630amps, 4no+4nc Similar To Abb-af750-30-ii, With Four Auxiliary 415v As Per Rcf Specfication Edts - 103, Rev D Amnd 4, Item Serial No. 21 Or Any Lates.